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Post by ania on Dec 18, 2018 2:08:23 GMT
Checking my Victron BMV-712 showing 0.9Amp draw with all of the switches off on the panel.
Decided to go for circuit breakers.
There is one called VHF, once I turned it off draw went down to 0.3Amp. All of the radios were disconnected! Any ideas?
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Post by so36idavid on Dec 18, 2018 2:32:45 GMT
Lots of modern electronics pull "phantom" loads. It sounds like your VHF might be doing so, although you'll want to trace the wiring or disconnect the power supply to the VHF in order to confirm it.
If you're wondering where the remaining 0.3A is going, I would guess it's your stereo, but it may also be your chartplotter.
David
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Post by Mistroma on Dec 20, 2018 15:05:18 GMT
Lots of modern electronics pull "phantom" loads. It sounds like your VHF might be doing so, although you'll want to trace the wiring or disconnect the power supply to the VHF in order to confirm it. If you're wondering where the remaining 0.3A is going, I would guess it's your stereo, but it may also be your chartplotter. David Sounds reasonable about the stereo. Our unit used power for time and stored stations. I also found that there was an active antenna which drew power from the CD/Radio. It was all standard on our 42DS so imagine lots of Jeanneau's have the same setup. |
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Post by ania on Dec 26, 2018 18:21:20 GMT
Lots of modern electronics pull "phantom" loads. It sounds like your VHF might be doing so, although you'll want to trace the wiring or disconnect the power supply to the VHF in order to confirm it. If you're wondering where the remaining 0.3A is going, I would guess it's your stereo, but it may also be your chartplotter. David I turned off Stereo breaker, in fact I switched every breaker one by one. 0.9Amp went to 0.3 after I turned VHF breaker off. Other ones including Stereo (labeled HIFI) had no effect. So could be NAV pulling .3Amp, but I don't think that there is a breaker for that. |
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Post by Mistroma on Dec 29, 2018 22:27:54 GMT
Some items may well not be wired via panels with a trip. I have heating and an alarm system which have fuses hidden away in difficult to find spots. I vaguely remember seeing a radio/CD with an extra input for station memory and internal clock. I'm not 100% certain of this but it is possible. My radio/CD certainly still supplied power to my active antenna after I'd turned off everything, including main battery switches. I had stored the radio control head away for winter and didn't see any LEDs. I noticed a slight current draw even with the alarm off and found it after removing the access cover above the panel one night. I could see a dim LED hidden away and realised it was an active antenna. I think the draw from antenna and radio memory was pretty low, probably only 100-150mA and not 300mA. Might be an active GPS antenna if your instruments don't seem to have a trip.
It can be a real pain finding some of these hidden items which do not show up on the wring diagrams.
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